| Value | Category | Cases | |
|---|---|---|---|
| 0 | matches all 3 years | 4286 |
61.9%
|
| 1 | 2000 only | 1273 |
18.4%
|
| 2 | 2000 & 2004 only | 1072 |
15.5%
|
| 3 | 2004 & 2008 only | 52 |
0.8%
|
| 4 | 2000 & 2008 only | 230 |
3.3%
|
| 5 | none of years match | 9 |
0.1%
|